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N tinited4 tete @stent Gettin.

i Letters Patent No. 103,010, dated May 17, 1870.

The Schedule referred to in these Letters Patent'and making part of thesa'me.

I, ALBERT C. BROWN, of Chicago, in the county of Cook and State ofIllinois, have invented a new and useful Improvement in Window-Screens,ofkwhich the following is a specification.

Object and Nature of the Intention.

The object of my invention is to make a window 'the width ofwhich can beadjusted to adapt it to windows of different widths', and

The nature of my invention, to accomplish this bbject, consists inmaking the side-pieces ofthe windowscreen frame in two parts, thoseparts being made adf instable relative to each other to adapt the screento the width of' the window, as hereafter more fully described.

Descriptiony ofthe Accompanying Drawing. Figure 1 -is a side elevationof my window-screen. Figure 2 a sectional view, taken at the line :eaz,- in

fig. 1. f

General Description.

Agis thc frame, put together at the corners 'as frames are usually made;and

B are additional side-pieces rabbeted to the frame A, as clearly shownin the drawing.

G' are dowel-pins, 4firmly secured to the pieces B, but passing looselyinto holes bored in the frame A.

To lwidenthe screen, the pieces B are drawn out, as shown by dottedlines, D, in `iig. 2. They are drawn out more or less to adapt the widthof the screen to the window, and they are held at any desired place hythe`set-screws E, which sit down against the pins C.

The rabbet joint admits of the sidepieces B being drawn out, as abovedescribed, without opening a space between them and the frame A. v

H is the wire, or screen-cloth, ordinarily nsed for window-screens, andit is firmly fastened to the frame A'in any of the well-knownWays.

The way Iusnally fasten it to the frame is by cutting a groove, L, inthe frame, lay the )vire or screen# cloth, which iss'uciently large forits edges/to extend `over the groove upon the trame, and then pre-ss astrip or molding into the groove wedging theedge of the screen in. thegroove beneath' the strip. To make a finished article, I cover the stripand4 groove. with a bead or. molding, I A

I have but one frame and one screen-cloth, and still am able to adjustthe width of `the screen to adapt it to windows of different Widths.

Claims.

\1. The adjustable side pieces B, attached to the sides of thewindow-screen' frame A, so that they can be adjusted .thereon and adaptthe frame towindows of differentwidths, substantially as and forthepurposes shown and described.

2. The combination and arrangement of the frame A, side pieces B, anddowel-pins C, when construct-ed 'and arranged substantially as and forthe purposes specified and shown.

. l A. C. BROWN. `Witnesse`s: v

LEWIS L. CQBURN, J. M. lVIARsHALL.v

